package demo;

import java.util.Scanner;

public class demo {
    public static void main(String[] args) {
        System.out.println("Hello world");
        System.out.println("Hello world1");
        System.out.println("Hello world2");
    }
    public static String GetInput(){
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入：");
        return scan.next();
    }
}
